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ពាក្យគន្លឹះកសិអេកូឡូស៊ី: ការកាត់បន្ថយធាតុចូល ប្រទេស: ប្រទេសថៃ ភាសា: ភាសាអង់គ្លេស

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  • Biochar production training

    This video captures a hands-on Biochar Production Training held in Chiangdao, Chiang Mai, Thailand. Local farmers and community members learned how to produce biochar and wood...